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Inventor

Limin Xu

Inventor
Beijing, CN

Overview

2→
Patents
2011–2017
Patent span
Chemistry
Primary field (CPC C)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C01Dprimary
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium25%
C02FTreatment of water, waste water, sewage, or sludge25%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds25%
C08LCompositions of macromolecular compounds25%
PatentTitleYear
9,802,848'Method for treating waste saline water produced in production process of diphenylmethane diisocyanate (MDI)'20177,893,301'Method of preparing polymethylene-polyphenyl-polyamine'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2017Based in Beijing, CN· patent location history
2017Patents assigned to CHEN JIANFENG (1)· patent assignee history
2017Patents assigned to CHU GUANGWEN (1)· patent assignee history
2017Patents assigned to DING JIANSHENG (1)· patent assignee history
2017Patents assigned to HUA WEIQI (1)· patent assignee history
2017Patents assigned to LIU XIAOGAO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CHEN JIANFENG12017
CHU GUANGWEN12017
DING JIANSHENG12017
HUA WEIQI12017
LIU XIAOGAO12017
Locations
LocationPatentsSpan
Beijing, CN22011–2017